The host is Archlinux with virt-manager. Desktop environments are Fedora spins. Virtual machines are given 5.7 GB. If you want any other test to be run let me know!
I’ve been on KDE for a while now. Doesn’t feel as heavy as I guess it is. That said, if you want Wayland you’re kinda stuck with GNOME or KDE (if you want something traditional). I’ve been enjoying KDE since the switch, though. I’m hoping it’ll get more resources from Valve.